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Financial and Derivative Instruments - Effect of Derivatives (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments |  |  |  |
Pre-tax deferred losses | $ 4 | $ (29) | $ 2 | $ (31)
Commodity |  |  |  |
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments |  |  |  |
Effect of derivatives, gain (loss), net | 69 | (210) | (16) | (1,187)
Commodity | Sales and other operating revenues |  |  |  |
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments |  |  |  |
Effect of derivatives, gain (loss), net | 78 | (74) | (19) | (947)
Commodity | Purchased crude oil and products |  |  |  |
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments |  |  |  |
Effect of derivatives, gain (loss), net | 1 | (129) | 19 | (234)
Commodity | Other income |  |  |  |
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments |  |  |  |
Effect of derivatives, gain (loss), net | $ (10) | $ (7) | $ (16) | $ (6)

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